Application of PAS for the Investigation of Overtones and Combinations in the near IR
| Autor: | Larry N. Lewis, Michael Natale |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Silicon
Chemistry Infrared Overtone 010401 analytical chemistry Analytical chemistry Infrared spectroscopy chemistry.chemical_element Overtone band 01 natural sciences 0104 chemical sciences 010309 optics Surface coating chemistry.chemical_compound 0103 physical sciences Ferricyanide Instrumentation Photoacoustic spectroscopy Spectroscopy |
| Zdroj: | Applied Spectroscopy. 36:410-413 |
| ISSN: | 1943-3530 0003-7028 |
| Popis: | The photoacoustic spectrometer (PAS) used in the near IR region is shown to be useful for observing the combinations and overtones of strong IR fundamentals. Overtones and combinations of the carbonyls in Mo(CO)6, Ir4(CO)12, and [RhCl(CO)2]2 are observed. Carbonyl and ring (C—H, C—C) fundamental overtones and combinations from (C6H6)Cr(CO)3 are observed in the near IR. The near IR PAS is shown to be useful for analyzing surface constituents on silicon. An overtone and combination due to bound H2O is identified on silicon by comparison to the near IR PAS spectrum of H2O and D2O. The C—N overtone band due to ferro- and ferricyanide is observed in the near IR by PAS. The spectrum of ferricyanide deposited on silicon is used to identify the surface changes that occur on a silicon photoelectrochemical cell coated with ferricyanide. |
| Databáze: | OpenAIRE |
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